The Cook MyoSite® Mission

Advancing the science of personalized regenerative medicine to elevate cellular therapies to an accepted and accessible option beyond traditional care.



Establishing numerous investigational clinical trials for various indications.


Providing essential tools and materials to research scientists around the world, using expertise gained during the development of clinical cell therapy products.


Using high-quality processes learned from Good Manufacturing Practices (GMP) in a modern, progressive facility.


Blazing new trails to benefit and progress regenerative medicine opportunities.


Cook MyoSite aims to reach people affected by muscle-related disorders around the world. Through unique, high-quality processes, Cook MyoSite is dedicated to uncompromising standards of safety, quality, and excellence.


Cook MyoSite is working toward furthering the impact of cell therapies by working with regulatory agencies and a global network of premier physicians and clinical sites in numerous clinical trials.

Cook MyoSite History

In 2002, Cook MyoSite, Incorporated was formed to guide the Cook Group organization into the expanding world of cellular technologies. Today, Cook MyoSite is dedicated to the development and subsequent commercialization of technology related to the collection, selection, and expansion of human skeletal muscle cells for the treatment of various disorders.


Leadership Team

Carl Cook, MBA  – CEO, Cook Group; President, Cook MyoSite, Inc.

Carl Cook earned his bachelor’s degree in electrical engineering from Purdue University and his MBA from the University of Iowa. Carl joined Cook Group in 1988, the company founded by his father, Bill Cook. Since then, Carl Cook has performed a variety of duties, including engineering cardiac pacemakers and Doppler blood flow monitors and working with endoscopy products. Most recently, Carl Cook serves as the CEO of Cook Group and the President of Cook MyoSite, Inc.


Ron Jankowski, PhD – Vice President, Scientific Affairs

Ron Jankowski has been with Cook MyoSite since its founding and has more than 15 years’ experience in translational medical and biologic product development. He earned his bachelor’s degree in chemical engineering, master’s degree in bioengineering, and doctoral degree in bioengineering from the University of Pittsburgh. Ron has authored and coauthored numerous peer-reviewed manuscripts, reviews, book chapters, and abstracts involving a wide variety of cellular-based applications. He leads the development programs for current products, investigates new indications for existing products, and evaluates the formation of strategic research partnerships to expand the Cook MyoSite product pipeline with a focus on translational research.  Ron is also actively involved in community promotion of innovation and entrepreneurism.


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Ryan Pruchnic, MS, MBA – Managing Vice President

Ryan Pruchnic earned his bachelor’s degree in biology and his master’s degree in exercise physiology from the University of Pittsburgh and his MBA from the Joseph M. Katz Graduate School of Business at the University of Pittsburgh. While working as a research scientist investigating the experimental uses of skeletal muscle-derived cells for urinary tract tissue augmentation, he was part of the original team that custom-built the cell isolation and manufacturing technology for use in human clinical trials. Ryan has authored and coauthored numerous peer-reviewed scientific journal articles and book chapters relating to gene and cell therapy research for musculoskeletal disorders. Ryan currently serves as Site Head for Cook MyoSite and is responsible for the Manufacturing and Business Administration functions of the company.


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